FI102798B - Circuit device in the radio frequency section of a digital mobile phone - Google Patents
Circuit device in the radio frequency section of a digital mobile phoneInfo
- Publication number
- FI102798B FI102798B FI923412A FI923412A FI102798B FI 102798 B FI102798 B FI 102798B FI 923412 A FI923412 A FI 923412A FI 923412 A FI923412 A FI 923412A FI 102798 B FI102798 B FI 102798B
- Authority
- FI
- Finland
- Prior art keywords
- mobile phone
- radio frequency
- circuit device
- digital mobile
- frequency section
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
- H04B1/405—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with multiple discrete channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
- H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI923412A FI102798B1 (en) | 1992-07-28 | 1992-07-28 | Circuit device in the radio frequency section of a digital mobile phone |
US08/096,864 US5471652A (en) | 1992-07-28 | 1993-07-26 | Frequency synthesizer and multiplier circuit arrangement for a radio telephone |
EP93305919A EP0581573B1 (en) | 1992-07-28 | 1993-07-27 | Universal radio telephone |
DE69322009T DE69322009T2 (en) | 1992-07-28 | 1993-07-27 | Universal radio telephone |
JP18628793A JP3310057B2 (en) | 1992-07-28 | 1993-07-28 | High frequency circuit configuration of digital mobile telephone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI923412A FI102798B1 (en) | 1992-07-28 | 1992-07-28 | Circuit device in the radio frequency section of a digital mobile phone |
Publications (4)
Publication Number | Publication Date |
---|---|
FI923412A0 FI923412A0 (en) | 1992-07-28 |
FI923412A FI923412A (en) | 1994-01-29 |
FI102798B true FI102798B (en) | 1999-02-15 |
FI102798B1 FI102798B1 (en) | 1999-02-15 |
Family
ID=8535658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI923412A FI102798B1 (en) | 1992-07-28 | 1992-07-28 | Circuit device in the radio frequency section of a digital mobile phone |
Country Status (5)
Country | Link |
---|---|
US (1) | US5471652A (en) |
EP (1) | EP0581573B1 (en) |
JP (1) | JP3310057B2 (en) |
DE (1) | DE69322009T2 (en) |
FI (1) | FI102798B1 (en) |
Families Citing this family (60)
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JP2840493B2 (en) * | 1991-12-27 | 1998-12-24 | 株式会社日立製作所 | Integrated microwave circuit |
FI102798B1 (en) * | 1992-07-28 | 1999-02-15 | Nokia Mobile Phones Ltd | Circuit device in the radio frequency section of a digital mobile phone |
FI98420C (en) * | 1995-01-24 | 1997-06-10 | Nokia Mobile Phones Ltd | Method and connection to generate a modulated signal in a transmitter / receiver |
JPH08223071A (en) * | 1995-02-08 | 1996-08-30 | Sony Corp | Transmitter and transmitter-receiver |
FI951918A (en) * | 1995-04-21 | 1996-10-22 | Nokia Mobile Phones Ltd | Transceiver apparatus and method for generating and processing a complex I / Q signal |
JP3070442B2 (en) * | 1995-05-24 | 2000-07-31 | 日本電気株式会社 | Digital modulation / demodulation circuit |
JP3252653B2 (en) * | 1995-06-05 | 2002-02-04 | 三菱電機株式会社 | Transceiver |
US5745843A (en) * | 1995-08-04 | 1998-04-28 | Motorola, Inc. | Selective call receivers with integer divide synthesizers for achieving fast-lock time |
FI106328B (en) | 1996-02-08 | 2001-01-15 | Nokia Mobile Phones Ltd | Method and circuitry for processing a received signal |
GB2310342A (en) * | 1996-02-16 | 1997-08-20 | Northern Telecom Ltd | Dual mode radio transceiver front end |
JPH09233143A (en) * | 1996-02-26 | 1997-09-05 | Nec Corp | Digital radio communication equipment |
FI104924B (en) * | 1996-02-29 | 2000-04-28 | Nokia Mobile Phones Ltd | A transmitter-receiver with interchangeable frequency band and bandwidth |
FI961143A (en) * | 1996-03-12 | 1997-09-13 | Nokia Mobile Phones Ltd | Method and circuitry for processing received signals in a communication system |
FI100286B (en) * | 1996-04-01 | 1997-10-31 | Nokia Mobile Phones Ltd | Transmitter / receiver for transmitting and receiving an RF signal in two frequency ranges |
JPH09321682A (en) * | 1996-05-27 | 1997-12-12 | Sony Corp | Communication system, communication method and terminal equipment |
US5732330A (en) * | 1996-07-02 | 1998-03-24 | Ericsson Inc. | Dual band transceiver |
US5787362A (en) * | 1996-07-08 | 1998-07-28 | Nokia Mobile Phones Limited | AM removal from FM signal generated by IQ modulator |
US5794159A (en) * | 1996-08-07 | 1998-08-11 | Nokia Mobile Phones Limited | Dual band mobile station employing cross-connected transmitter and receiver circuits |
US5768691A (en) * | 1996-08-07 | 1998-06-16 | Nokia Mobile Phones Limited | Antenna switching circuits for radio telephones |
FI102122B1 (en) * | 1996-11-14 | 1998-10-15 | Nokia Mobile Phones Ltd | Generation of frequencies in a multi-mode radio system |
GB2320631B (en) | 1996-12-23 | 2001-07-18 | Nokia Mobile Phones Ltd | Radio receiver and radio transmitter |
GB2320632B (en) * | 1996-12-23 | 2001-09-05 | Nokia Mobile Phones Ltd | Method and apparatus for transmitting and receiving signals |
KR19980057483A (en) * | 1996-12-30 | 1998-09-25 | 김광호 | Dual Band Transceiver in Cell Phone |
FI108486B (en) * | 1997-01-31 | 2002-01-31 | Nokia Corp | Method and Circuit Arrangement for Processing Received Signals in a Communication System |
US6009312A (en) * | 1997-02-05 | 1999-12-28 | Ericsson Inc. | Transmit signal generation with the aid of a receiver |
US6091939A (en) * | 1997-02-18 | 2000-07-18 | Ericsson Inc. | Mobile radio transmitter with normal and talk-around frequency bands |
US5974305A (en) | 1997-05-15 | 1999-10-26 | Nokia Mobile Phones Limited | Dual band architectures for mobile stations |
FR2765416B1 (en) * | 1997-06-27 | 2004-01-16 | Sat Sa De Telecomm | MICROWAVE STAGE IN A TELECOMMUNICATIONS TRANSMITTER OR RECEIVER |
US6163684A (en) * | 1997-08-01 | 2000-12-19 | Microtune, Inc. | Broadband frequency synthesizer |
IT1294732B1 (en) | 1997-09-15 | 1999-04-12 | Italtel Spa | IMAGE REJECTION SUBHARMONIC FREQUENCY CONVERTER MADE IN MICRO-STRIP, PARTICULARLY SUITABLE FOR USE IN |
ATE429080T1 (en) * | 1997-10-14 | 2009-05-15 | Cypress Semiconductor Corp | DIGITAL RADIO TRANSMITTER |
US6308048B1 (en) * | 1997-11-19 | 2001-10-23 | Ericsson Inc. | Simplified reference frequency distribution in a mobile phone |
WO1999030420A1 (en) * | 1997-12-05 | 1999-06-17 | Koninklijke Philips Electronics N.V. | A communication system, a communication device and a frequency synthesizer |
US6317590B1 (en) | 1997-12-23 | 2001-11-13 | Nokia Mobile Phones, Ltd. | Mixer for a receiver |
US6125266A (en) * | 1997-12-31 | 2000-09-26 | Nokia Mobile Phones Limited | Dual band architectures for mobile stations having transmitter linearization feedback |
US6359940B1 (en) * | 1998-03-02 | 2002-03-19 | Qualcomm Incorporated | Method and apparatus for downconverting signals transmitted using a plurality of modulation formats to a common intermediate frequency range |
US6057740A (en) * | 1998-04-06 | 2000-05-02 | Northrop Grumman Corporation | Local oscillator system using harmonic derived from phase locked loop |
US6208875B1 (en) * | 1998-04-08 | 2001-03-27 | Conexant Systems, Inc. | RF architecture for cellular dual-band telephones |
JP2908429B1 (en) * | 1998-05-14 | 1999-06-21 | 静岡日本電気株式会社 | Multiple synthesizer control system for simplified mobile phone and multiple synthesizer control method |
JP3389945B2 (en) | 1998-06-18 | 2003-03-24 | 日本電気株式会社 | Dual band transceiver circuit |
FR2786056B1 (en) * | 1998-11-13 | 2000-12-22 | Sagem | METHOD FOR SETTING A MULTIBAND TRANSMITTER FOR MOBILE TELEPHONY AND MOBILE TELEPHONE THUS OBTAINED |
FI112741B (en) | 1998-11-26 | 2003-12-31 | Nokia Corp | Method and arrangement for transmitting and receiving RF signals at various radio interfaces of communication systems |
EP1104953A1 (en) * | 1999-11-30 | 2001-06-06 | Lucent Technologies Inc. | Receiving apparatus for electromagnetic signals |
US6504443B1 (en) | 2000-05-17 | 2003-01-07 | Nec America, Inc., | Common anode varactor tuned LC circuit |
US6671337B1 (en) | 2000-10-25 | 2003-12-30 | Koninklijke Philips Electronics N.V. | Carrier modulator for use in a transmitter or transceiver |
US7151915B2 (en) * | 2001-09-26 | 2006-12-19 | Nokia Corporation | Dual mode voltage controlled oscillator having controllable bias modes and power consumption |
KR20030058414A (en) * | 2001-12-31 | 2003-07-07 | 삼성전자주식회사 | Multi-frequency band transceiver by way of variable band pass filter |
GB0204108D0 (en) * | 2002-02-21 | 2002-04-10 | Analog Devices Inc | 3G radio |
US6833769B2 (en) * | 2003-03-21 | 2004-12-21 | Nokia Corporation | Voltage controlled capacitive elements having a biasing network |
US6788161B2 (en) * | 2002-11-12 | 2004-09-07 | Nokia Corporation | Integrated oscillator circuit that inhibits noise generated by biasing circuitry |
US6958658B2 (en) * | 2003-03-25 | 2005-10-25 | Intel Corporation | Circuit and method for generating a clock signal |
US6911872B2 (en) * | 2003-03-25 | 2005-06-28 | Intel Corporation | Circuit and method for generating a clock signal |
US6960950B2 (en) * | 2003-03-25 | 2005-11-01 | Intel Corporation | Circuit and method for generating a clock signal |
DE102004050621B4 (en) * | 2003-11-03 | 2011-03-10 | Heidelberger Druckmaschinen Ag | Circuit for clock interpolation |
JP2005151113A (en) * | 2003-11-14 | 2005-06-09 | Matsushita Electric Ind Co Ltd | Semiconductor integrated circuit for wireless communication |
US7805113B2 (en) * | 2005-06-30 | 2010-09-28 | Cypress Semiconductor Corporation | Circuit and method for selectable high/low side injection in an intermediate frequency transceiver |
US7933561B2 (en) * | 2006-12-11 | 2011-04-26 | Apple Inc. | Wireless communications circuitry with simultaneous receive capabilities for handheld electronic devices |
US7818029B2 (en) * | 2007-04-11 | 2010-10-19 | Apple Inc. | Wireless communications circuitry with antenna sharing capabilities for handheld electronic devices |
US8229352B2 (en) * | 2007-07-05 | 2012-07-24 | Sibeam, Inc. | Wireless architecture for 60GHZ |
FR2979781B1 (en) * | 2011-09-05 | 2014-06-27 | Thales Sa | COMMUNICATION NODE ADAPTED FOR RECEIVING AND / OR TRANSMITTING RADIOCOMMUNICATIONS ACCORDING SIMULTANEOUSLY AT LEAST ONE FIRST AND A SECOND COMMUNICATION PROTOCOL |
Family Cites Families (10)
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US4377871A (en) * | 1981-04-06 | 1983-03-22 | Motorola, Inc. | Transmit security system for a synthesized transceiver |
GB8607022D0 (en) * | 1986-03-21 | 1986-04-30 | British Telecomm | Single frequency transceiver |
US4969210A (en) * | 1988-02-10 | 1990-11-06 | Motorola, Inc. | Two-way radio having a PLL |
FI81933C (en) * | 1989-05-18 | 1990-12-10 | Nokia Mobira Oy | Procedure for generating frequencies in a digital radio telephone |
AU6643790A (en) * | 1989-11-09 | 1991-06-13 | Roger Reed | Digital circuit for a frequency modulation and carrier synthesis in a digital radio system |
US5163159A (en) * | 1990-07-30 | 1992-11-10 | Motorola, Inc. | Dual mode automatic frequency control |
US5175729A (en) * | 1991-06-05 | 1992-12-29 | Motorola, Inc. | Radio with fast lock phase-locked loop |
FI91819C (en) * | 1991-11-05 | 1994-08-10 | Nokia Mobile Phones Ltd | Method for generating frequencies for two digital radio telephones operating in different frequency ranges |
FI102798B1 (en) * | 1992-07-28 | 1999-02-15 | Nokia Mobile Phones Ltd | Circuit device in the radio frequency section of a digital mobile phone |
US5392460A (en) * | 1993-04-23 | 1995-02-21 | Nokia Mobile Phones Ltd. | Dual mode radiotelephone terminal selectively operable for frequency modulated or phase modulated operation |
-
1992
- 1992-07-28 FI FI923412A patent/FI102798B1/en not_active IP Right Cessation
-
1993
- 1993-07-26 US US08/096,864 patent/US5471652A/en not_active Expired - Lifetime
- 1993-07-27 EP EP93305919A patent/EP0581573B1/en not_active Expired - Lifetime
- 1993-07-27 DE DE69322009T patent/DE69322009T2/en not_active Expired - Lifetime
- 1993-07-28 JP JP18628793A patent/JP3310057B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06209235A (en) | 1994-07-26 |
US5471652A (en) | 1995-11-28 |
DE69322009T2 (en) | 1999-05-12 |
DE69322009D1 (en) | 1998-12-17 |
EP0581573B1 (en) | 1998-11-11 |
FI923412A (en) | 1994-01-29 |
EP0581573A1 (en) | 1994-02-02 |
JP3310057B2 (en) | 2002-07-29 |
FI923412A0 (en) | 1992-07-28 |
FI102798B1 (en) | 1999-02-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MA | Patent expired |